bosch platinum 2 gap

[therise21]

can anyone tell me how to gap the bosch platinum 2 plugs? i am unsure of how to do this since it has 2 electrodes. it says that they are factory gapped, but i dont know how accurate this is. thanks for your help.

 

[96limitedX]

i geuss factory spec is about 50-55 or close to that. i went with about 48-50 on mine.

 

[therise21]

thanks. surprisingly they were all pretty close to that out of the box.

 

[96limitedX]

mine where also..

 

[DeRocha]

I believe platinum tip plugs come pre-gapped (very tight tolerance from the factory).

 

[therise21]

thanks. changed the driver side today, doing the passenger side tomorrow.

 

[DeRocha]

Ok I just went for a little stroll on Bosch's web site and they indicate you should Never adjust the gap on their Platinum2 or Platinum+4 plugs. Both grounding electrodes need to be the exact same distance from the center electrode to fire correctly. If you were to re-gapp them I'm sure you'd never get both to be dead on and you'd lose any benefits of having a multi-ground plug.

Q. Are Bosch Spark Plugs pre-gapped at the factory?

A. Most Bosch Spark Plugs are factory pre-gapped for popular vehicle applications. The gap measurements are indicated either on the box, or by the part number located on the spark plug shell.
X suffix = .044"
Y suffix = .060"
Z suffix = .080"
Gaps should never by adjusted on Platinum+4 or Platinum2. Bosch Platinum+4 and Platinum2 have factory pre-set gaps, and should never be gapped by the installer.

 

[410Fortune]

IN fact you are not supossed to gap and platinum plugs, they are done at the factory. UUnless you drop one out of the box and bend it, dont touch the electrode, you can chip the platinum coating.